Separation and extraction of dust and iron from brass borings, brass turnings, and like material



I w. sowDEN` SEPARATION AND EXTRACTION 0F DUST AND IRON FROM BRASSBORINGS, BRASS TURNINGS,

AND LIKE MATERIAL.

APPLICATION FILED IULY 20, |917.

2 SHEETS-SHEET l.

Patented Feb. 24,1920.

1b Hynam W. SOWDEN.

SEPARATION AND EXTRACTION 0F DUST AND IRON FROM BRASS BORINGS, BRASSTURNINGS,

AND LIKE MATERIAL.

I APPLICATION FILED .IULY 20, I9I7 1,332,078. Patented Feb. 24,1920.

2 SHEETS-SHEET 2- n'nrrnn sTATns PATENT oFFIoE.

WALTER SOWDEN, 0F LEEDS, ENGLAND.

SEPARATION AND EXTRACTION 0F DUST AND IRON FROM BRASS BORINGS, BRASSTURNINGS, AND LIKE MATERIAL. I l

Specification of Letters Patent. Patented Feb, 24, 1920.

Application filed July 20, 1917. Serial No. 181,880.

To all whom t may concern:

Be it known that I, WALTER SOWDEN, a subject of the King of GreatBritain and Ireland, residing at Leeds, in the county of York, England,have invented new and useful Improvements in or Relating to theSeparation and Extraction of Dust and Iron from Brass Borings, BrassTurnings, and like Material, of which the following 1s a specication.

This invention relates to improvements in the method of separating andextracting dust and iron from brass borings, brass turnings, and othermaterial, and in apparatus for use in connection therewith.

In the accompanying drawings- Figure l is a front elevation of myimproved apparatus in a convenient form, and partly in section.

Fig. 2 is a side elevation of same.

According to my said invention the material to be cleaned is placed in asuitably elevated hopper A, and is conveyed therefrom, at any desiredrate of feed, by means of a rotating worm device B delivering into theupper end 0f an upright separating chamber or chute C, which in turndelivers into a box or receptacle D beneath, or into suitably arrangedside or bottom chutes.

A suitable exhaust fan (not shown), connecting with the upper part ofthe separating chamber C, is arranged to induce (if required) an upwardblast of air through the separating chamber C, this air blast meetingthe falling vmaterial and f separating therefrom the comparatively lightdust particles, which may be collected in any convenient manner. y

At convenient intermediate points on opposite sides of the separatingchamber C are provided side openings E, E1, and in external conjunctionrespectively with these openings are mounted a pair of electromagnets F,F1, having an alternating reciprocating movement Within a correspondingpair of cylindrical casings or tubes G, G1, said alternating andreciprocating movement being adjustably controlled from a main drivingshaft H, for instance by means of a crank disk I, connecting rod J,crank K, countershafts L, L1, cranks M,

until the magnet moves outward, When the current is automatically cutolf by means of a suitably placed switch (not shown) and the magnetdemagnetized, the iron being dropped for collection by way of chutes Q,Q1'. or other convenient means.

The feed Worm shaft R is driven from lthe aforesaid main shaft H bytoothed gearing S, chain gearing, or the like, and the said main shaft His driven in any convenient manner as for instance by belt pulley T. Y

I claim:

1. In a device of the class described, a chute with openings in itsopposite side walls, sleeves projecting therefrom, magnets extendingthrdugh said sleeves into said openings, means for horizontally shiftingsaid magnets in said sleeves to collecting and discharging positions,and means for energizing and denergizing the magnets in the respectivepositions.

2. In combination, a chute with openings in its opposite Walls, sleevesprojecting therefrom, magnets extending through said sleeves into saidopenings, means for reciprocating the magnets comprising a main driveshaft for the machine, counter shafts on opposite sides of said mainshaft, a crank disk on said main shaft, a crank on one of said countershafts, a connecting rod by which the crank disk on the main shaftoscillates said crank, crank members mounted on the respectivecountershafts, a connecting rod coupling the last mentioned cranks by whichsaid counter shafts are oscillated in unison, other cranks on therespectivev counter shafts, and spindles carried by the respectivemagnets and engaged and reciprocated by the said other cranks.

' WALTER SOWDEN. Witnesses:

ALLAN BENNm'r, GERTRUDE MITCHELL.

